LFRC driver

LFRC clock driver. More...

Macros
#define	NRFX_CLOCK_LFRC_EVT_OFFSET   32
	Symbol specifying driver event offset for LFRC hardware events.

Typedefs
typedef void(*	nrfx_clock_lfrc_event_handler_t) (nrfx_clock_lfrc_evt_type_t event)
	LFRC event handler.

Enumerations
enum	nrfx_clock_lfrc_evt_type_t { NRFX_CLOCK_LFRC_EVT_CAL_DONE }
	Clock events. More...

Functions
int	nrfx_clock_lfrc_init (nrfx_clock_lfrc_event_handler_t event_handler)
	Function for initializing internal structures in the nrfx_clock_lfrc driver.
void	nrfx_clock_lfrc_uninit (void)
	Function for uninitializing the LFRC driver.
bool	nrfx_clock_lfrc_init_check (void)
	Function for checking if the LFRC driver is initialized.
int	nrfx_clock_lfrc_calibration_start (void)
	Function for starting the calibration of internal LFRC.
int	nrfx_clock_lfrc_calibrating_check (void)
	Function for checking if calibration is in progress.
void	nrfx_clock_lfrc_irq_handler (void)
	LFRC interrupt handler.

Detailed Description

LFRC clock driver.

Typedef Documentation

nrfx_clock_lfrc_event_handler_t

typedef void(* nrfx_clock_lfrc_event_handler_t) (nrfx_clock_lfrc_evt_type_t event)

LFRC event handler.

Parameters

[in]

event

Event.

Enumeration Type Documentation

nrfx_clock_lfrc_evt_type_t

enum nrfx_clock_lfrc_evt_type_t

Clock events.

Enumerator
NRFX_CLOCK_LFRC_EVT_CAL_DONE	Calibration has been done.

Function Documentation

nrfx_clock_lfrc_calibrating_check()

int nrfx_clock_lfrc_calibrating_check

(

void

)

Function for checking if calibration is in progress.

This function indicates that the system is in calibration phase.

Return values

0	The procedure is successful.
-EBUSY	Clock is in the calibration phase.

nrfx_clock_lfrc_calibration_start()

int nrfx_clock_lfrc_calibration_start

(

void

)

Function for starting the calibration of internal LFRC.

This function starts the calibration process. The process cannot be aborted. LFRC and high-frequency clock must be running before this function is called.

Return values

0	The procedure is successful.
-EINPROGRESS	The low-frequency or high-frequency clock is off.
-EBUSY	Clock is in the calibration phase.

nrfx_clock_lfrc_init()

int nrfx_clock_lfrc_init

(

nrfx_clock_lfrc_event_handler_t

event_handler

)

Function for initializing internal structures in the nrfx_clock_lfrc driver.

After initialization, the driver is in power off state (clocks are not started).

Parameters

[in]

event_handler

Event handler provided by the user. If not provided, driver works in blocking mode.

Return values

0	The procedure is successful.
-EALREADY	The driver is already initialized.

nrfx_clock_lfrc_init_check()

bool nrfx_clock_lfrc_init_check

(

void

)

Function for checking if the LFRC driver is initialized.

Return values

true	Driver is already initialized.
false	Driver is not initialized.